The concept of species based on experiment
By: Jens Clausen, David D. Keck, and William M. Hiesey
Publisher: Botanical Society of America
Published: 1939
Place of publication: U.S.A.
Language: eng
Number of pages: 106
Subjects: Plants; Classification; Plant genetics; Plant hybridization
Notes: Title from caption.

"Reprinted from the American Journal of Botany, vol. 26, no. 2, [pages] 103-106, February, 1939."

Includes bibliographical references (page 106).